:root {
  --bg: #0a0e14;
  --bg-elev: #0f1419;
  --bg-card: #151b24;
  --bg-card-hover: #1a212c;
  --border: #1f2935;
  --border-strong: #2d3a4d;
  --text: #e5e9f0;
  --text-muted: #8b94a3;
  --text-dim: #5a6373;
  --primary: #06b6d4;
  --primary-hover: #0891b2;
  --primary-glow: rgba(6,182,212,0.15);
  --accent: #5b8def;
  --accent-glow: rgba(91,141,239,0.15);
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --pending: #94a3b8;
  --vip: #f59e0b;
  --shadow: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.4);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--primary-glow); color: var(--text); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* === Header === */

header {
  display: flex;
  align-items: center;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.9rem 1.5rem 0.9rem 0;
  margin-right: 1rem;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
}

.brand-sub {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  font-weight: 500;
  font-size: 14px;
}

nav a:hover { background: var(--bg-card); color: var(--text); }
nav a.on {
  background: var(--primary-glow);
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(6,182,212,0.3);
}

nav .logout {
  margin-left: auto;
}

nav .logout button {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: all 0.15s;
}

nav .logout button:hover { border-color: var(--danger); color: var(--danger); }

/* === Main === */

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}

h2 {
  font-size: 1.2rem;
  margin: 2rem 0 1rem;
  font-weight: 600;
  letter-spacing: -0.2px;
}

h3 {
  font-size: 0.95rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--primary-hover); text-decoration: underline; }

.muted { color: var(--text-muted); }
.dim { color: var(--text-dim); }
.small { font-size: 0.85em; }
.mono { font-family: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace; font-size: 0.85em; }
.warn { color: var(--warn); }
.danger { color: var(--danger); }
.success { color: var(--success); }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-head h1 { margin: 0; }

/* === Tables === */

.table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 1rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
}

th, td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg-elev);
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  user-select: none;
}

th a { color: var(--text-muted); }
th a:hover { color: var(--text); text-decoration: none; }
th .sort-active { color: var(--primary); }

tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: var(--bg-card-hover); }

td a {
  font-weight: 500;
}

.empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px dashed var(--border-strong);
}

.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }

/* === Stats grid === */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2.5rem;
}

.stat {
  background: var(--bg-card);
  padding: 1.25rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: all 0.2s;
}

.stat:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.stat-val {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}

.stat-val.primary { color: var(--primary); }
.stat-val.warn { color: var(--warn); }
.stat-val.danger { color: var(--danger); }
.stat-val.success { color: var(--success); }

.stat-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

/* === Badges === */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.22rem 0.65rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.badge-active { background: rgba(16,185,129,0.12); color: var(--success); }
.badge-active::before { background: var(--success); box-shadow: 0 0 6px var(--success); }

.badge-suspended { background: rgba(239,68,68,0.12); color: var(--danger); }
.badge-suspended::before { background: var(--danger); }

.badge-pending { background: rgba(148,163,184,0.12); color: var(--pending); }
.badge-pending::before { background: var(--pending); }

.badge-cancelled { background: rgba(139,148,163,0.12); color: var(--text-muted); }
.badge-cancelled::before { background: var(--text-muted); }

.badge-vip {
  background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(245,158,11,0.05));
  color: var(--vip);
  border: 1px solid rgba(245,158,11,0.3);
}
.badge-vip::before { display: none; }

.tag {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  background: var(--bg-elev);
  color: var(--text-muted);
  border: 1px solid var(--border);
  margin-right: 4px;
}

.expiry-soon {
  color: var(--warn);
  font-weight: 600;
}
.expiry-urgent {
  color: var(--danger);
  font-weight: 600;
}
.expiry-expired {
  color: var(--danger);
  font-weight: 700;
  text-decoration: line-through;
  opacity: 0.7;
}

.comment-icon {
  display: inline-block;
  cursor: help;
  color: var(--accent);
  margin-left: 4px;
}

/* === Buttons === */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.55rem 1.1rem;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-dim);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 2px 8px var(--primary-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--accent) 100%);
  box-shadow: 0 4px 12px var(--primary-glow);
  color: white;
}

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}
.btn-danger:hover { background: #dc2626; color: white; }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-card); }

.btn.big { padding: 0.9rem 2rem; font-size: 1rem; }
.btn.small { padding: 0.35rem 0.7rem; font-size: 0.82rem; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* === Forms === */

.form {
  max-width: 540px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.form input,
.form select,
.form textarea {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.15s;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form textarea { resize: vertical; min-height: 80px; }

.form .form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.form .checkbox {
  flex-direction: row;
  align-items: center;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.form .checkbox:hover { border-color: var(--border-strong); }
.form .checkbox input { width: auto; cursor: pointer; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-grid label { margin: 0; }
.form-grid .full { grid-column: 1 / -1; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}

.inline-form {
  display: flex;
  gap: 0.5rem;
  align-items: end;
  margin: 0.5rem 0;
  flex-wrap: wrap;
}

/* === Filters / search bar === */

.toolbar {
  display: flex;
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 240px;
}

.search-box input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.6rem 0.85rem 0.6rem 2.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.15s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.5;
  font-size: 0.85rem;
  pointer-events: none;
}

.filters {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filters a {
  padding: 0.45rem 0.95rem;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: all 0.15s;
}

.filters a:hover { background: var(--bg-card-hover); text-decoration: none; color: var(--text); }
.filters a.on {
  background: var(--primary-glow);
  color: var(--primary);
  border-color: rgba(6,182,212,0.4);
}

.filter-count {
  display: inline-block;
  background: var(--bg-elev);
  border-radius: 10px;
  padding: 0 6px;
  font-size: 0.7rem;
  margin-left: 4px;
}

/* === Detail page grid === */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
}

dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0.6rem 1rem;
  margin: 0.5rem 0;
}
dt { color: var(--text-muted); font-size: 0.875rem; }
dd { margin: 0; color: var(--text); }

section.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1rem 0;
}

section.card h2:first-child { margin-top: 0; }

.copy-link {
  position: relative;
  background: var(--bg);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 0.75rem 0;
}

.copy-link code {
  display: block;
  font-size: 0.85em;
  word-break: break-all;
  font-family: "SF Mono", "JetBrains Mono", Menlo, monospace;
  color: var(--accent);
  padding-right: 70px;
}

.copy-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.35rem 0.75rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
}
.copy-btn:hover { background: var(--primary-hover); }
.copy-btn.copied { background: var(--success); }

.danger-zone {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px dashed rgba(239,68,68,0.3);
}

/* === Charts === */

.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 200px;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.bar-chart .bar {
  flex: 1;
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 4px 4px 0 0;
  min-height: 2px;
  position: relative;
  transition: all 0.2s;
  cursor: pointer;
}

.bar-chart .bar:hover {
  filter: brightness(1.2);
}

.bar-chart .bar::after {
  content: attr(data-value);
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.bar-chart .bar:hover::after {
  color: var(--text);
}

.bar-labels {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.bar-labels span {
  flex: 1;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === Calendar === */

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin: 1.5rem 0;
}

.cal-day {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px;
  min-height: 80px;
  font-size: 0.8rem;
}

.cal-day.today { border-color: var(--primary); background: var(--primary-glow); }
.cal-day.has-event { border-color: var(--accent); }

.cal-day-num { color: var(--text-muted); font-weight: 600; }
.cal-day-event {
  display: block;
  background: var(--accent);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  margin-top: 4px;
  font-size: 0.7rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === Toast === */

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  color: var(--text);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--success);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* === Login page === */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  background: radial-gradient(ellipse at top, var(--bg-elev), var(--bg) 70%);
  position: relative;
  overflow: hidden;
}

.login-body::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--primary-glow), transparent 70%);
  pointer-events: none;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.login-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 0.5rem;
}

.login-logo img { width: 64px; height: 64px; border-radius: 14px; }

.login-card h1 {
  margin: 0;
  text-align: center;
  font-size: 1.4rem;
  letter-spacing: -0.3px;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.login-card input {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all 0.15s;
  font-family: inherit;
}

.login-card input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.login-card button {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 0.5rem;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.15s;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.login-card button:hover {
  box-shadow: 0 4px 16px var(--primary-glow);
  transform: translateY(-1px);
}

.login-card .error {
  background: rgba(239,68,68,0.15);
  color: var(--danger);
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  margin: 0;
  font-size: 0.875rem;
  border: 1px solid rgba(239,68,68,0.3);
}

/* === Pay page === */

.pay-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  background: radial-gradient(ellipse at top, var(--bg-elev), var(--bg) 70%);
}

.pay-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 520px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.pay-card img.logo {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  margin-bottom: 1.5rem;
}

.pay-card h1 { margin: 0 0 1rem; font-size: 1.6rem; }
.pay-card .btn { margin: 1.5rem 0; }

.pay-card .price {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 1rem 0;
}

/* === Telegram preview === */

.telegram-preview {
  background: #182533;
  color: #e6ebf0;
  padding: 14px 16px;
  border-radius: 16px;
  border-bottom-left-radius: 4px;
  max-width: 480px;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
  margin: 1rem 0;
}

/* === Email preview iframe === */

.email-preview-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 1rem 0;
}

.email-preview-wrap iframe {
  width: 100%;
  height: 700px;
  border: none;
  border-radius: var(--radius-sm);
  background: white;
}

/* === Quick actions === */

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 1rem;
}

.action-buttons form { margin: 0; }
.action-buttons .btn { width: 100%; justify-content: center; }

/* === Bulk selection === */

.bulk-bar {
  position: sticky;
  top: 60px;
  background: var(--primary-glow);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 1rem 0;
  display: none;
  align-items: center;
  gap: 12px;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.bulk-bar.active { display: flex; }
.bulk-count { font-weight: 600; color: var(--primary); }

/* === Responsive === */

@media (max-width: 768px) {
  main { padding: 1rem; }
  nav { gap: 0; flex-wrap: wrap; }
  .brand { padding-right: 0.75rem; }
  .brand-text { display: none; }
  h1 { font-size: 1.4rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  table { font-size: 0.85rem; }
  th, td { padding: 0.6rem 0.5rem; }
}